diff --git a/labsw/LOG b/labsw/LOG
index cb5a972..af5cc74 100644
--- a/labsw/LOG
+++ b/labsw/LOG
@@ -223,6 +223,7 @@ To do: debounce buttons (in software) before accepting a state change.
     opto-coupler LEDs from VBUS via the pull-ups into VDD)
   - added low-pass filters to button inputs, to suppress interferences,
     e.g., from load being switched (with help from Joerg Reisenweber)
+  - added hardware revision ID pins
 
 Pending:
 - widen column cavities by 0.2 mm on each side
@@ -234,4 +235,3 @@ Pending:
 - verify 2512 footprint of 1 W resistors
 - add ground zones
 - firmware: disable internal pull-ups
-- add hardware revision ID pins
diff --git a/labsw/labsw.cmp b/labsw/labsw.cmp
index 6272801..dd0f4f9 100644
--- a/labsw/labsw.cmp
+++ b/labsw/labsw.cmp
@@ -1,4 +1,4 @@
-Cmp-Mod V01 Created by CvPCB (2010-12-27 BZR 2685)-unstable date = Sat Sep 10 20:32:12 2011
+Cmp-Mod V01 Created by CvPCB (2010-12-27 BZR 2685)-unstable date = Sat Sep 10 20:41:10 2011
 
 BeginCmp
 TimeStamp = /4E55CABB;
@@ -322,6 +322,20 @@ ValeurCmp = 10k;
 IdModule  = 0603;
 EndCmp
 
+BeginCmp
+TimeStamp = /4E6BF476;
+Reference = R26;
+ValeurCmp = NC;
+IdModule  = 0603;
+EndCmp
+
+BeginCmp
+TimeStamp = /4E6BF47E;
+Reference = R27;
+ValeurCmp = 0;
+IdModule  = 0603;
+EndCmp
+
 BeginCmp
 TimeStamp = /4E5344A0;
 Reference = U1;
diff --git a/labsw/labsw.sch b/labsw/labsw.sch
index aa4bd94..3e49242 100644
--- a/labsw/labsw.sch
+++ b/labsw/labsw.sch
@@ -1,4 +1,4 @@
-EESchema Schematic File Version 2  date Sat Sep 10 20:21:28 2011
+EESchema Schematic File Version 2  date Sat Sep 10 20:40:54 2011
 LIBS:power
 LIBS:device
 LIBS:conn
@@ -22,6 +22,211 @@ Comment2 ""
 Comment3 ""
 Comment4 ""
 $EndDescr
+Wire Notes Line
+	9100 5950 9100 6400
+Wire Notes Line
+	8550 6100 10150 6100
+Wire Wire Line
+	9150 5200 9150 5400
+Wire Wire Line
+	9150 4700 9150 4050
+Wire Wire Line
+	9150 4050 8950 4050
+Wire Wire Line
+	6150 4200 3150 4200
+Wire Wire Line
+	5350 4600 5350 4050
+Connection ~ 4550 4200
+Wire Wire Line
+	4550 4600 4550 4200
+Wire Wire Line
+	4550 5000 4550 5250
+Wire Wire Line
+	1950 6050 1950 6250
+Wire Wire Line
+	7350 5200 7350 5400
+Wire Wire Line
+	7650 5200 7650 5400
+Wire Wire Line
+	7950 5200 7950 5400
+Wire Wire Line
+	8950 4350 9950 4350
+Wire Wire Line
+	8950 3600 9950 3600
+Wire Wire Line
+	8950 3300 9950 3300
+Wire Wire Line
+	7950 2200 7950 2400
+Wire Wire Line
+	7650 2200 7650 2400
+Wire Wire Line
+	7050 2400 7050 2200
+Wire Wire Line
+	6150 3450 5950 3450
+Wire Wire Line
+	6700 6150 6700 5600
+Wire Wire Line
+	6700 5600 6850 5600
+Wire Wire Line
+	6850 5600 6850 6150
+Wire Wire Line
+	7150 6150 7150 5400
+Wire Wire Line
+	7150 5400 7200 5400
+Wire Wire Line
+	7200 5400 7200 5200
+Wire Wire Line
+	4950 5000 4950 5250
+Connection ~ 3150 4200
+Wire Wire Line
+	3150 4050 2550 4050
+Wire Wire Line
+	2550 3750 6150 3750
+Wire Wire Line
+	3150 5050 3150 5250
+Wire Wire Line
+	3750 5050 3750 5250
+Connection ~ 1200 3900
+Wire Wire Line
+	1200 3900 1400 3900
+Wire Wire Line
+	1200 4050 1400 4050
+Wire Wire Line
+	1400 3450 1200 3450
+Wire Wire Line
+	1400 3600 1200 3600
+Connection ~ 1200 3600
+Wire Wire Line
+	1200 3450 1200 4250
+Connection ~ 1200 4050
+Wire Wire Line
+	3450 5050 3450 5250
+Wire Wire Line
+	2550 3900 6150 3900
+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 5950 4200
+Wire Wire Line
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+Connection ~ 3450 3900
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 5950 4350
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	7500 2200 7500 2400
+Wire Wire Line
+	7800 2200 7800 2400
+Wire Wire Line
+	8100 2200 8100 2400
+Wire Wire Line
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+Wire Wire Line
+	8950 3750 9950 3750
+Wire Wire Line
+	8950 4200 9950 4200
+Wire Wire Line
+	8100 5200 8100 5400
+Wire Wire Line
+	7800 5200 7800 5400
+Wire Wire Line
+	7500 5200 7500 5400
+Wire Wire Line
+	3150 4550 3150 3550
+Connection ~ 3150 4050
+Wire Wire Line
+	3750 4550 3750 3750
+Connection ~ 3750 3750
+Wire Wire Line
+	5350 5000 5350 5250
+Wire Wire Line
+	4150 4600 4150 4200
+Connection ~ 4150 4200
+Wire Wire Line
+	6150 4050 4950 4050
+Connection ~ 5350 4050
+Wire Wire Line
+	4950 3550 4950 4600
+Connection ~ 4950 4050
+Wire Wire Line
+	8950 3900 9350 3900
+Wire Wire Line
+	9350 3900 9350 4700
+Wire Wire Line
+	9350 5200 9350 5400
+Wire Notes Line
+	8800 5950 8800 6400
+Text Notes 9150 6400 0    60   ~ 0
+1 (external pull-ups)
+Text Notes 9150 6250 0    60   ~ 0
+0 (internal pull-ups)
+Text Notes 8550 6400 0    60   ~ 0
+0
+Text Notes 8850 6400 0    60   ~ 0
+NC
+Text Notes 8850 6250 0    60   ~ 0
+NC
+Text Notes 8550 6250 0    60   ~ 0
+NC
+Text Notes 9150 6050 0    60   ~ 0
+Revision
+Text Notes 8850 6050 0    60   ~ 0
+R27
+Text Notes 8550 6050 0    60   ~ 0
+R26
+Text Notes 8550 5850 0    60   ~ 0
+Board revision
+$Comp
+L GND #PWR16
+U 1 1 4E6BF49D
+P 9350 5400
+F 0 "#PWR16" H 9350 5400 30  0001 C CNN
+F 1 "GND" H 9350 5330 30  0001 C CNN
+	1    9350 5400
+	1    0    0    -1  
+$EndComp
+$Comp
+L GND #PWR15
+U 1 1 4E6BF49A
+P 9150 5400
+F 0 "#PWR15" H 9150 5400 30  0001 C CNN
+F 1 "GND" H 9150 5330 30  0001 C CNN
+	1    9150 5400
+	1    0    0    -1  
+$EndComp
+$Comp
+L R R27
+U 1 1 4E6BF47E
+P 9350 4950
+F 0 "R27" V 9430 4950 50  0000 C CNN
+F 1 "0" V 9350 4950 50  0000 C CNN
+	1    9350 4950
+	-1   0    0    1   
+$EndComp
+$Comp
+L R R26
+U 1 1 4E6BF476
+P 9150 4950
+F 0 "R26" V 9230 4950 50  0000 C CNN
+F 1 "NC" V 9150 4950 50  0000 C CNN
+	1    9150 4950
+	-1   0    0    1   
+$EndComp
 Text Notes 3150 1550 0    60   ~ 0
 2 Relays+2 Opto
 $Sheet
@@ -30,400 +235,267 @@ U 4E6BEDF0
 F0 "CH12" 60
 F1 "ch12.sch" 60
 $EndSheet
-Connection ~ 5450 4050
-Wire Wire Line
-	5450 3550 5450 4600
-Connection ~ 5850 4050
-Wire Wire Line
-	5450 4050 6650 4050
-Connection ~ 4650 4200
-Wire Wire Line
-	4650 4600 4650 4200
-Wire Wire Line
-	5850 5000 5850 5250
-Connection ~ 4250 3750
-Wire Wire Line
-	4250 4550 4250 3750
-Connection ~ 3650 4050
-Wire Wire Line
-	3650 4550 3650 3550
-Wire Wire Line
-	8000 5200 8000 5400
-Wire Wire Line
-	8300 5200 8300 5400
-Wire Wire Line
-	8600 5200 8600 5400
-Wire Wire Line
-	9450 4200 9650 4200
-Wire Wire Line
-	9450 3750 9650 3750
-Wire Wire Line
-	9450 3450 9650 3450
-Wire Wire Line
-	8600 2200 8600 2400
-Wire Wire Line
-	8300 2200 8300 2400
-Wire Wire Line
-	8000 2200 8000 2400
-Wire Wire Line
-	7700 2400 7700 2200
-Wire Wire Line
-	6650 3300 6450 3300
-Wire Wire Line
-	6650 3600 6450 3600
-Connection ~ 6450 4350
-Wire Wire Line
-	6450 4200 6450 5400
-Wire Wire Line
-	6450 5400 7450 5400
-Wire Wire Line
-	7450 5400 7450 6150
-Wire Wire Line
-	7550 5200 7550 6150
-Wire Wire Line
-	4650 5000 4650 5250
-Connection ~ 3950 3900
-Wire Wire Line
-	3950 3900 3950 4550
-Connection ~ 6450 4200
-Wire Wire Line
-	6650 4350 6450 4350
-Wire Wire Line
-	3050 3450 3250 3450
-Wire Wire Line
-	3050 3900 6650 3900
-Wire Wire Line
-	3950 5050 3950 5250
-Connection ~ 1700 4050
-Wire Wire Line
-	1700 4250 1700 3450
-Connection ~ 1700 3600
-Wire Wire Line
-	1900 3600 1700 3600
-Wire Wire Line
-	1700 3450 1900 3450
-Wire Wire Line
-	1700 4050 1900 4050
-Wire Wire Line
-	1700 3900 1900 3900
-Connection ~ 1700 3900
-Wire Wire Line
-	4250 5050 4250 5250
-Wire Wire Line
-	3650 5050 3650 5250
-Wire Wire Line
-	3050 3750 6650 3750
-Wire Wire Line
-	3650 4050 3050 4050
-Connection ~ 3650 4200
-Wire Wire Line
-	5450 5000 5450 5250
-Wire Wire Line
-	7700 5200 7700 5400
-Wire Wire Line
-	7700 5400 7650 5400
-Wire Wire Line
-	7650 5400 7650 6150
-Wire Wire Line
-	7350 6150 7350 5600
-Wire Wire Line
-	7350 5600 7200 5600
-Wire Wire Line
-	7200 5600 7200 6150
-Wire Wire Line
-	6650 3450 6450 3450
-Wire Wire Line
-	7550 2400 7550 2200
-Wire Wire Line
-	8150 2200 8150 2400
-Wire Wire Line
-	8450 2200 8450 2400
-Wire Wire Line
-	9450 3300 9650 3300
-Wire Wire Line
-	9450 3600 9650 3600
-Wire Wire Line
-	9450 4350 9650 4350
-Wire Wire Line
-	8450 5200 8450 5400
-Wire Wire Line
-	8150 5200 8150 5400
-Wire Wire Line
-	7850 5200 7850 5400
-Wire Wire Line
-	2450 6050 2450 6250
-Wire Wire Line
-	5050 5000 5050 5250
-Wire Wire Line
-	5050 4600 5050 4200
-Connection ~ 5050 4200
-Wire Wire Line
-	5850 4050 5850 4600
-Wire Wire Line
-	3650 4200 6650 4200
 $Comp
-L VDD #PWR01
+L VDD #PWR10
 U 1 1 4E6BEDBD
-P 5450 3550
-F 0 "#PWR01" H 5450 3650 30  0001 C CNN
-F 1 "VDD" H 5450 3660 50  0000 C CNN
-	1    5450 3550
+P 4950 3550
+F 0 "#PWR10" H 4950 3650 30  0001 C CNN
+F 1 "VDD" H 4950 3660 50  0000 C CNN
+	1    4950 3550
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR02
+L GND #PWR12
 U 1 1 4E6BE98F
-P 5850 5250
-F 0 "#PWR02" H 5850 5250 30  0001 C CNN
-F 1 "GND" H 5850 5180 30  0001 C CNN
-	1    5850 5250
+P 5350 5250
+F 0 "#PWR12" H 5350 5250 30  0001 C CNN
+F 1 "GND" H 5350 5180 30  0001 C CNN
+	1    5350 5250
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR03
+L GND #PWR9
 U 1 1 4E6BE93E
-P 5050 5250
-F 0 "#PWR03" H 5050 5250 30  0001 C CNN
-F 1 "GND" H 5050 5180 30  0001 C CNN
-	1    5050 5250
+P 4550 5250
+F 0 "#PWR9" H 4550 5250 30  0001 C CNN
+F 1 "GND" H 4550 5180 30  0001 C CNN
+	1    4550 5250
 	1    0    0    -1  
 $EndComp
 $Comp
 L C C3
 U 1 1 4E6BE90B
-P 5450 4800
-F 0 "C3" H 5500 4900 50  0000 L CNN
-F 1 "4.7uF" H 5500 4700 50  0000 L CNN
-	1    5450 4800
+P 4950 4800
+F 0 "C3" H 5000 4900 50  0000 L CNN
+F 1 "4.7uF" H 5000 4700 50  0000 L CNN
+	1    4950 4800
 	1    0    0    -1  
 $EndComp
 $Comp
 L C C4
 U 1 1 4E6BE909
-P 5850 4800
-F 0 "C4" H 5900 4900 50  0000 L CNN
-F 1 "100nF" H 5900 4700 50  0000 L CNN
-	1    5850 4800
+P 5350 4800
+F 0 "C4" H 5400 4900 50  0000 L CNN
+F 1 "100nF" H 5400 4700 50  0000 L CNN
+	1    5350 4800
 	1    0    0    -1  
 $EndComp
-Text Label 3250 3900 0    60   ~ 0
+Text Label 2750 3900 0    60   ~ 0
 DM
-Text Label 3250 3750 0    60   ~ 0
+Text Label 2750 3750 0    60   ~ 0
 DP
 $Comp
-L PWR_FLAG #FLG04
+L PWR_FLAG #FLG1
 U 1 1 4E5600BD
-P 2450 6050
-F 0 "#FLG04" H 2450 6320 30  0001 C CNN
-F 1 "PWR_FLAG" H 2450 6280 30  0000 C CNN
-	1    2450 6050
+P 1950 6050
+F 0 "#FLG1" H 1950 6320 30  0001 C CNN
+F 1 "PWR_FLAG" H 1950 6280 30  0000 C CNN
+	1    1950 6050
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR05
+L GND #PWR2
 U 1 1 4E5600B6
-P 2450 6250
-F 0 "#PWR05" H 2450 6250 30  0001 C CNN
-F 1 "GND" H 2450 6180 30  0001 C CNN
-	1    2450 6250
+P 1950 6250
+F 0 "#PWR2" H 1950 6250 30  0001 C CNN
+F 1 "GND" H 1950 6180 30  0001 C CNN
+	1    1950 6250
 	1    0    0    -1  
 $EndComp
 $Comp
-L +5V #PWR06
+L +5V #PWR4
 U 1 1 4E560053
-P 3650 3550
-F 0 "#PWR06" H 3650 3640 20  0001 C CNN
-F 1 "+5V" H 3650 3640 50  0000 C CNN
-	1    3650 3550
+P 3150 3550
+F 0 "#PWR4" H 3150 3640 20  0001 C CNN
+F 1 "+5V" H 3150 3640 50  0000 C CNN
+	1    3150 3550
 	1    0    0    -1  
 $EndComp
-Text GLabel 7850 5400 3    60   Output ~ 0
+Text GLabel 7350 5400 3    60   Output ~ 0
 OUT_4
-Text GLabel 8000 5400 3    60   Output ~ 0
+Text GLabel 7500 5400 3    60   Output ~ 0
 OUT_3
-Text GLabel 8150 5400 3    60   Output ~ 0
+Text GLabel 7650 5400 3    60   Output ~ 0
 OUT_2
-Text GLabel 8300 5400 3    60   Output ~ 0
+Text GLabel 7800 5400 3    60   Output ~ 0
 OUT_1
-Text GLabel 8600 5400 3    60   Output ~ 0
+Text GLabel 8100 5400 3    60   Output ~ 0
 CH2_OPT
-Text GLabel 9650 4350 2    60   Output ~ 0
+Text GLabel 9950 4350 2    60   Output ~ 0
 CH2_RELAY
-Text GLabel 8450 5400 3    60   Output ~ 0
+Text GLabel 7950 5400 3    60   Output ~ 0
 CH1_OPT
-Text GLabel 9650 4200 2    60   Output ~ 0
+Text GLabel 9950 4200 2    60   Output ~ 0
 CH1_RELAY
-NoConn ~ 9450 4050
-NoConn ~ 9450 3900
-Text GLabel 9650 3450 2    60   Output ~ 0
+Text GLabel 9950 3450 2    60   Output ~ 0
 LED_CH2_G
-Text GLabel 9650 3300 2    60   Output ~ 0
+Text GLabel 9950 3300 2    60   Output ~ 0
 LED_CH2_R
-Text GLabel 8600 2200 1    60   Output ~ 0
+Text GLabel 8100 2200 1    60   Output ~ 0
 LED_CH1_G
-Text GLabel 8450 2200 1    60   Output ~ 0
+Text GLabel 7950 2200 1    60   Output ~ 0
 LED_CH1_R
-Text GLabel 9650 3750 2    60   Output ~ 0
+Text GLabel 9950 3750 2    60   Output ~ 0
 LED_MAIN_G
-Text GLabel 9650 3600 2    60   Output ~ 0
+Text GLabel 9950 3600 2    60   Output ~ 0
 LED_MAIN_R
-Text GLabel 7550 2200 1    60   Input ~ 0
+Text GLabel 7050 2200 1    60   Input ~ 0
 IN_4
-Text GLabel 8150 2200 1    60   Input ~ 0
+Text GLabel 7650 2200 1    60   Input ~ 0
 BUT_CH2
-Text GLabel 8300 2200 1    60   Input ~ 0
+Text GLabel 7800 2200 1    60   Input ~ 0
 BUT_CH1
-Text GLabel 8000 2200 1    60   Input ~ 0
+Text GLabel 7500 2200 1    60   Input ~ 0
 BUT_MAIN
-NoConn ~ 7850 2400
-Text GLabel 7700 2200 1    60   Input ~ 0
+NoConn ~ 7350 2400
+Text GLabel 7200 2200 1    60   Input ~ 0
 IN_3
-Text GLabel 6450 3450 0    60   Input ~ 0
+Text GLabel 5950 3450 0    60   Input ~ 0
 IN_2
-Text GLabel 6450 3300 0    60   Input ~ 0
+Text GLabel 5950 3300 0    60   Input ~ 0
 IN_1
-Text Label 7650 5950 1    60   ~ 0
+Text Label 7150 5950 1    60   ~ 0
 C2D
-Text Label 7550 5950 1    60   ~ 0
+Text Label 7050 5950 1    60   ~ 0
 C2CK
-Text Label 7450 5950 1    60   ~ 0
+Text Label 6950 5950 1    60   ~ 0
 VBUS
-Text Label 7350 5950 1    60   ~ 0
+Text Label 6850 5950 1    60   ~ 0
 GND
 $Comp
-L GND #PWR07
+L GND #PWR14
 U 1 1 4E55CC91
-P 7200 6150
-F 0 "#PWR07" H 7200 6150 30  0001 C CNN
-F 1 "GND" H 7200 6080 30  0001 C CNN
-	1    7200 6150
+P 6700 6150
+F 0 "#PWR14" H 6700 6150 30  0001 C CNN
+F 1 "GND" H 6700 6080 30  0001 C CNN
+	1    6700 6150
 	1    0    0    -1  
 $EndComp
 $Comp
 L CONN_4 P1
 U 1 1 4E55CC1E
-P 7500 6500
-F 0 "P1" V 7450 6500 50  0000 C CNN
-F 1 "CONN_4" V 7550 6500 50  0000 C CNN
-	1    7500 6500
+P 7000 6500
+F 0 "P1" V 6950 6500 50  0000 C CNN
+F 1 "CONN_4" V 7050 6500 50  0000 C CNN
+	1    7000 6500
 	0    -1   1    0   
 $EndComp
 $Comp
-L GND #PWR08
+L GND #PWR11
 U 1 1 4E55CB76
-P 5450 5250
-F 0 "#PWR08" H 5450 5250 30  0001 C CNN
-F 1 "GND" H 5450 5180 30  0001 C CNN
-	1    5450 5250
+P 4950 5250
+F 0 "#PWR11" H 4950 5250 30  0001 C CNN
+F 1 "GND" H 4950 5180 30  0001 C CNN
+	1    4950 5250
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR09
+L GND #PWR8
 U 1 1 4E55CB75
-P 4650 5250
-F 0 "#PWR09" H 4650 5250 30  0001 C CNN
-F 1 "GND" H 4650 5180 30  0001 C CNN
-	1    4650 5250
+P 4150 5250
+F 0 "#PWR8" H 4150 5250 30  0001 C CNN
+F 1 "GND" H 4150 5180 30  0001 C CNN
+	1    4150 5250
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR010
+L GND #PWR13
 U 1 1 4E55CB70
-P 6450 3600
-F 0 "#PWR010" H 6450 3600 30  0001 C CNN
-F 1 "GND" H 6450 3530 30  0001 C CNN
-	1    6450 3600
+P 5950 3600
+F 0 "#PWR13" H 5950 3600 30  0001 C CNN
+F 1 "GND" H 5950 3530 30  0001 C CNN
+	1    5950 3600
 	0    1    1    0   
 $EndComp
-NoConn ~ 3050 3600
+NoConn ~ 2550 3600
 $Comp
 L C C1
 U 1 1 4E55CABB
-P 4650 4800
-F 0 "C1" H 4700 4900 50  0000 L CNN
-F 1 "4.7uF" H 4700 4700 50  0000 L CNN
-	1    4650 4800
+P 4150 4800
+F 0 "C1" H 4200 4900 50  0000 L CNN
+F 1 "4.7uF" H 4200 4700 50  0000 L CNN
+	1    4150 4800
 	1    0    0    -1  
 $EndComp
 $Comp
 L C C2
 U 1 1 4E55CAB9
-P 5050 4800
-F 0 "C2" H 5100 4900 50  0000 L CNN
-F 1 "100nF" H 5100 4700 50  0000 L CNN
-	1    5050 4800
+P 4550 4800
+F 0 "C2" H 4600 4900 50  0000 L CNN
+F 1 "100nF" H 4600 4700 50  0000 L CNN
+	1    4550 4800
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR011
+L GND #PWR5
 U 1 1 4E55CA97
-P 3650 5250
-F 0 "#PWR011" H 3650 5250 30  0001 C CNN
-F 1 "GND" H 3650 5180 30  0001 C CNN
-	1    3650 5250
+P 3150 5250
+F 0 "#PWR5" H 3150 5250 30  0001 C CNN
+F 1 "GND" H 3150 5180 30  0001 C CNN
+	1    3150 5250
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR012
+L GND #PWR7
 U 1 1 4E55CA95
-P 4250 5250
-F 0 "#PWR012" H 4250 5250 30  0001 C CNN
-F 1 "GND" H 4250 5180 30  0001 C CNN
-	1    4250 5250
+P 3750 5250
+F 0 "#PWR7" H 3750 5250 30  0001 C CNN
+F 1 "GND" H 3750 5180 30  0001 C CNN
+	1    3750 5250
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR013
+L GND #PWR6
 U 1 1 4E55CA93
-P 3950 5250
-F 0 "#PWR013" H 3950 5250 30  0001 C CNN
-F 1 "GND" H 3950 5180 30  0001 C CNN
-	1    3950 5250
+P 3450 5250
+F 0 "#PWR6" H 3450 5250 30  0001 C CNN
+F 1 "GND" H 3450 5180 30  0001 C CNN
+	1    3450 5250
 	1    0    0    -1  
 $EndComp
 $Comp
-L GND #PWR014
+L GND #PWR3
 U 1 1 4E55CA58
-P 3250 3450
-F 0 "#PWR014" H 3250 3450 30  0001 C CNN
-F 1 "GND" H 3250 3380 30  0001 C CNN
-	1    3250 3450
+P 2750 3450
+F 0 "#PWR3" H 2750 3450 30  0001 C CNN
+F 1 "GND" H 2750 3380 30  0001 C CNN
+	1    2750 3450
 	0    -1   -1   0   
 $EndComp
 $Comp
-L GND #PWR015
+L GND #PWR1
 U 1 1 4E55CA4A
-P 1700 4250
-F 0 "#PWR015" H 1700 4250 30  0001 C CNN
-F 1 "GND" H 1700 4180 30  0001 C CNN
-	1    1700 4250
+P 1200 4250
+F 0 "#PWR1" H 1200 4250 30  0001 C CNN
+F 1 "GND" H 1200 4180 30  0001 C CNN
+	1    1200 4250
 	1    0    0    -1  
 $EndComp
 $Comp
 L VR VR1
 U 1 1 4E55CA29
-P 3650 4800
-F 0 "VR1" V 3730 4800 50  0000 C CNN
-F 1 "VR" V 3650 4800 50  0000 C CNN
-	1    3650 4800
+P 3150 4800
+F 0 "VR1" V 3230 4800 50  0000 C CNN
+F 1 "VR" V 3150 4800 50  0000 C CNN
+	1    3150 4800
 	-1   0    0    1   
 $EndComp
 $Comp
 L VR VR3
 U 1 1 4E55CA27
-P 4250 4800
-F 0 "VR3" V 4330 4800 50  0000 C CNN
-F 1 "VR" V 4250 4800 50  0000 C CNN
-	1    4250 4800
+P 3750 4800
+F 0 "VR3" V 3830 4800 50  0000 C CNN
+F 1 "VR" V 3750 4800 50  0000 C CNN
+	1    3750 4800
 	-1   0    0    1   
 $EndComp
 $Comp
 L VR VR2
 U 1 1 4E55CA26
-P 3950 4800
-F 0 "VR2" V 4030 4800 50  0000 C CNN
-F 1 "VR" V 3950 4800 50  0000 C CNN
-	1    3950 4800
+P 3450 4800
+F 0 "VR2" V 3530 4800 50  0000 C CNN
+F 1 "VR" V 3450 4800 50  0000 C CNN
+	1    3450 4800
 	-1   0    0    1   
 $EndComp
 Text Notes 4700 1550 0    60   ~ 0
@@ -445,19 +517,19 @@ $EndSheet
 $Comp
 L MINI_USB_B CON1
 U 1 1 4E534734
-P 2450 3750
-F 0 "CON1" H 2450 4250 60  0000 C CNN
-F 1 "MINI_USB_B" H 2450 3250 60  0000 C CNN
-	1    2450 3750
+P 1950 3750
+F 0 "CON1" H 1950 4250 60  0000 C CNN
+F 1 "MINI_USB_B" H 1950 3250 60  0000 C CNN
+	1    1950 3750
 	-1   0    0    1   
 $EndComp
 $Comp
 L C8051F320 U1
 U 1 1 4E5344A0
-P 8050 3800
-F 0 "U1" H 7050 5000 60  0000 C CNN
-F 1 "C8051F320" H 8050 3800 60  0000 C CNN
-	1    8050 3800
+P 7550 3800
+F 0 "U1" H 6550 5000 60  0000 C CNN
+F 1 "C8051F320" H 7550 3800 60  0000 C CNN
+	1    7550 3800
 	1    0    0    -1  
 $EndComp
 $EndSCHEMATC